Creating a translucent effect within one half of a green body zirconia blank
US9668837B2 · kind B2 · utility
5Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24967
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dental block for producing a dental prosthesis comprises a green body including zirconia and having a chemical composition including increasing amounts of a chroma component, such as manganese, through a thickness of the green body. The green body is substantially white with a substantially consistent optical characteristic of chroma across the thickness, and is subsequently millable and sinterable to form the dental prosthesis with an optical characteristic of decreasing gray color through a thickness of the dental prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.